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Finding the Fourth Proportional to 63,690.93, 87,891.35 and 35,396.01

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Solution

The fourth proportional to 63,690.93, 87,891.35 and 35,396.01 is: 48,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,690.93 : 87,891.35 = 35,396.01 : x
  2. Step 2: Convert to fraction form
    63,690.93/87,891.35 = 35,396.01/x
  3. Step 3: Cross multiply
    63,690.93x = 87,891.35 × 35,396.01
  4. Step 4: Simplify right side
    63,690.93x = 3,111,002,926.53
  5. Step 5: Solve for x
    x = 3,111,002,926.53/63,690.93
  6. Step 6: Final answer
    x = 48,845.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.